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Number of 5*n X 5 0..2 arrays with row sums 4 and column sums 4*n
1

%I #4 Mar 31 2012 12:35:40

%S 628080,31237467004800,2630024635942177123650,

%T 276584170067890425950927140800,

%U 32920939338005930859094601223181654080,4240699386876069215051650356835022129252074650

%N Number of 5*n X 5 0..2 arrays with row sums 4 and column sums 4*n

%H R. H. Hardin, <a href="/A172701/b172701.txt">Table of n, a(n) for n=1..19</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010